PET problem SOLVED!

[Pete Turnbull]

On Aug 13 2004, 22:07, Dave Dunfield wrote:
> Ethan, Dwight (and anyone else who helped),
>
> Thanks for all the help - I've solved it and it works!
>
> Turns out it was NOT the ROM's -- After my last post I got to
thinking that the PET
> ROM's are probably fused type, and wouldn't go marginal like an EPROM

They're masked ROMs, not fusible-link types.  Even fusible-link ROMs
can occasionally go bad, though less often and more slowly than EPROMs.
 Sometimes the fuses "grow back" by diffusion.

-- 
Pete						Peter Turnbull
						Network Manager
						University of York